You can not remove the skype icon (in the show application) after uninstalling it in Ubuntu Softwate Center

I installed Skype through the Software Center and now I want to delete it. I try to run sudo apt-get –purge remove skype but I can not find the skype package and then delete it in the Software Center. After uninstalling, I try to delete the icon but I can not find the solution. My question is: How to eliminate in depth the application installed in the Software Center without the name of the package (dpkg –list) and how to eliminate the icon that remains in Show application? I am using Ubuntu 18.04.

How to remove skype
I uninstalled Skype and I still have an icon in the menu of my application called "Skype"